VIRTUAL TESTING / CDS WORKBENCH
ASTM D6641 · Compression coupon
Measures compression properties of a composite coupon using a fixture that combines end loading with shear loading.
Analytical / measured-data assessment
Open this exercise in Workbench ↗
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Recorded instructional case · Workbench captures and saved calculation data, October 2026. This website preview does not run the test.
Specimen & fixture
Calculated assessment
Force magnitude (N)
Deformation magnitude (mm)
View plotted values
| Series | Deformation magnitude (mm) | Force magnitude (N) |
|---|---|---|
| Elastic specimen response (not fixture travel) | 0 | 0 |
| Elastic specimen response (not fixture travel) | 0.00006823234080120759 | 10 |
| Elastic specimen response (not fixture travel) | 0.00013646468160241517 | 20 |
| Elastic specimen response (not fixture travel) | 0.0002046970224036228 | 30.00000000000001 |
| Elastic specimen response (not fixture travel) | 0.00027292936320483035 | 40 |
| Elastic specimen response (not fixture travel) | 0.00034116170400603796 | 50.00000000000001 |
| Elastic specimen response (not fixture travel) | 0.0004093940448072456 | 60.00000000000002 |
| Elastic specimen response (not fixture travel) | 0.0004776263856084531 | 70 |
| Elastic specimen response (not fixture travel) | 0.0005458587264096607 | 80 |
| Elastic specimen response (not fixture travel) | 0.0006140910672108684 | 90.00000000000001 |
| Elastic specimen response (not fixture travel) | 0.0006823234080120759 | 100.00000000000001 |
| Elastic specimen response (not fixture travel) | 0.0007505557488132835 | 110.00000000000001 |
| Elastic specimen response (not fixture travel) | 0.0008187880896144912 | 120.00000000000004 |
| Elastic specimen response (not fixture travel) | 0.0008870204304156987 | 130.00000000000003 |
| Elastic specimen response (not fixture travel) | 0.0009552527712169062 | 140 |
| Elastic specimen response (not fixture travel) | 0.001023485112018114 | 150.00000000000003 |
| Elastic specimen response (not fixture travel) | 0.0010917174528193214 | 160 |
| Elastic specimen response (not fixture travel) | 0.001159949793620529 | 170.00000000000003 |
| Elastic specimen response (not fixture travel) | 0.0012281821344217367 | 180.00000000000003 |
| Elastic specimen response (not fixture travel) | 0.0012964144752229442 | 190.00000000000003 |
| Elastic specimen response (not fixture travel) | 0.0013646468160241519 | 200.00000000000003 |
| Elastic specimen response (not fixture travel) | 0.0014328791568253593 | 210 |
| Elastic specimen response (not fixture travel) | 0.001501111497626567 | 220.00000000000003 |
| Elastic specimen response (not fixture travel) | 0.0015693438384277746 | 230.00000000000003 |
| Elastic specimen response (not fixture travel) | 0.0016375761792289823 | 240.00000000000009 |
| Elastic specimen response (not fixture travel) | 0.0017058085200301898 | 250.00000000000003 |
| Elastic specimen response (not fixture travel) | 0.0017740408608313974 | 260.00000000000006 |
| Elastic specimen response (not fixture travel) | 0.0018422732016326049 | 270 |
| Elastic specimen response (not fixture travel) | 0.0019105055424338123 | 280 |
| Elastic specimen response (not fixture travel) | 0.0019787378832350202 | 290.00000000000006 |
| Elastic specimen response (not fixture travel) | 0.002046970224036228 | 300.00000000000006 |
| Elastic specimen response (not fixture travel) | 0.0021152025648374356 | 310.00000000000006 |
| Elastic specimen response (not fixture travel) | 0.002183434905638643 | 320 |
| Elastic specimen response (not fixture travel) | 0.0022516672464398505 | 330.00000000000006 |
| Elastic specimen response (not fixture travel) | 0.002319899587241058 | 340.00000000000006 |
| Elastic specimen response (not fixture travel) | 0.0023881319280422654 | 350 |
| Elastic specimen response (not fixture travel) | 0.0024563642688434735 | 360.00000000000006 |
| Elastic specimen response (not fixture travel) | 0.0025245966096446807 | 370 |
| Elastic specimen response (not fixture travel) | 0.0025928289504458884 | 380.00000000000006 |
| Elastic specimen response (not fixture travel) | 0.002661061291247096 | 390.00000000000006 |
| Elastic specimen response (not fixture travel) | 0.0027292936320483037 | 400.00000000000006 |
| Elastic specimen response (not fixture travel) | 0.002797525972849511 | 410 |
| Elastic specimen response (not fixture travel) | 0.0028657583136507186 | 420 |
| Elastic specimen response (not fixture travel) | 0.0029339906544519263 | 430.00000000000006 |
| Elastic specimen response (not fixture travel) | 0.003002222995253134 | 440.00000000000006 |
| Elastic specimen response (not fixture travel) | 0.003070455336054342 | 450.00000000000017 |
| Elastic specimen response (not fixture travel) | 0.0031386876768555493 | 460.00000000000006 |
| Elastic specimen response (not fixture travel) | 0.003206920017656757 | 470.00000000000017 |
| Elastic specimen response (not fixture travel) | 0.0032751523584579646 | 480.00000000000017 |
| Elastic specimen response (not fixture travel) | 0.003343384699259172 | 490.00000000000006 |
| Elastic specimen response (not fixture travel) | 0.0034116170400603795 | 500.00000000000006 |
| Elastic specimen response (not fixture travel) | 0.003479849380861587 | 510.00000000000006 |
| Elastic specimen response (not fixture travel) | 0.003548081721662795 | 520.0000000000001 |
| Elastic specimen response (not fixture travel) | 0.003616314062464002 | 530 |
| Elastic specimen response (not fixture travel) | 0.0036845464032652098 | 540 |
| Elastic specimen response (not fixture travel) | 0.0037527787440664174 | 550.0000000000001 |
| Elastic specimen response (not fixture travel) | 0.0038210110848676247 | 560 |
| Elastic specimen response (not fixture travel) | 0.0038892434256688323 | 570 |
| Elastic specimen response (not fixture travel) | 0.0039574757664700404 | 580.0000000000001 |
| Elastic specimen response (not fixture travel) | 0.004025708107271248 | 590 |
| Elastic specimen response (not fixture travel) | 0.004093940448072456 | 600.0000000000001 |
| Elastic specimen response (not fixture travel) | 0.004162172788873663 | 610.0000000000001 |
| Elastic specimen response (not fixture travel) | 0.004230405129674871 | 620.0000000000001 |
| Elastic specimen response (not fixture travel) | 0.004298637470476078 | 630.0000000000001 |
| Elastic specimen response (not fixture travel) | 0.004366869811277286 | 640 |
| Elastic specimen response (not fixture travel) | 0.004435102152078494 | 650.0000000000001 |
| Elastic specimen response (not fixture travel) | 0.004503334492879701 | 660.0000000000001 |
| Elastic specimen response (not fixture travel) | 0.004571566833680908 | 670 |
| Elastic specimen response (not fixture travel) | 0.004639799174482116 | 680.0000000000001 |
| Elastic specimen response (not fixture travel) | 0.0047080315152833235 | 690 |
| Elastic specimen response (not fixture travel) | 0.004776263856084531 | 700 |
| Elastic specimen response (not fixture travel) | 0.004844496196885739 | 710.0000000000001 |
| Elastic specimen response (not fixture travel) | 0.004912728537686947 | 720.0000000000001 |
| Elastic specimen response (not fixture travel) | 0.004980960878488154 | 730.0000000000001 |
| Elastic specimen response (not fixture travel) | 0.005049193219289361 | 740 |
| Elastic specimen response (not fixture travel) | 0.0051174255600905695 | 750.0000000000001 |
| Elastic specimen response (not fixture travel) | 0.005185657900891777 | 760.0000000000001 |
| Elastic specimen response (not fixture travel) | 0.005253890241692985 | 770.0000000000001 |
| Elastic specimen response (not fixture travel) | 0.005322122582494192 | 780.0000000000001 |
| Elastic specimen response (not fixture travel) | 0.005390354923295399 | 790 |
| Elastic specimen response (not fixture travel) | 0.005458587264096607 | 800.0000000000001 |
| Elastic specimen response (not fixture travel) | 0.005526819604897815 | 810.0000000000001 |
| Elastic specimen response (not fixture travel) | 0.005595051945699022 | 820 |
| Elastic specimen response (not fixture travel) | 0.00566328428650023 | 830.0000000000001 |
| Elastic specimen response (not fixture travel) | 0.005731516627301437 | 840 |
| Elastic specimen response (not fixture travel) | 0.0057997489681026445 | 850 |
| Elastic specimen response (not fixture travel) | 0.0058679813089038526 | 860.0000000000001 |
| Elastic specimen response (not fixture travel) | 0.00593621364970506 | 870 |
| Elastic specimen response (not fixture travel) | 0.006004445990506268 | 880.0000000000001 |
| Elastic specimen response (not fixture travel) | 0.006072678331307475 | 890 |
| Elastic specimen response (not fixture travel) | 0.006140910672108684 | 900.0000000000003 |
| Elastic specimen response (not fixture travel) | 0.006209143012909891 | 910.0000000000003 |
| Elastic specimen response (not fixture travel) | 0.006277375353711099 | 920.0000000000001 |
| Elastic specimen response (not fixture travel) | 0.006345607694512307 | 930.0000000000003 |
| Elastic specimen response (not fixture travel) | 0.006413840035313514 | 940.0000000000003 |
| Elastic specimen response (not fixture travel) | 0.006482072376114721 | 950.0000000000001 |
| Elastic specimen response (not fixture travel) | 0.006550304716915929 | 960.0000000000003 |
| Elastic specimen response (not fixture travel) | 0.0066185370577171365 | 970.0000000000001 |
| Elastic specimen response (not fixture travel) | 0.006686769398518344 | 980.0000000000001 |
| Elastic specimen response (not fixture travel) | 0.006755001739319552 | 990.0000000000003 |
| Elastic specimen response (not fixture travel) | 0.006823234080120759 | 1000.0000000000001 |
Set up in CDS
- Link the laminate thickness and axial stiffness.
- Enter the combined-loading coupon and gauge geometry.
- Enter force and measured compressive strength.
- Compare elastic response and nominal strength demand.
Combined-loading compression fixturePositive compression magnitudes in result plotsMeasured strength remains an independent input
Inputs for this recorded case
- 105 × 25 × 2 mm
- 16 plies / 2 mm
- Selected force 1000 N
- Explicit source calibration/properties
These are teaching-case inputs, not ASTM-prescribed specimen dimensions or acceptance criteria.
Response & readout
Stress magnitude (MPa)
Strain magnitude (—)
View plotted values
| Series | Strain magnitude (—) | Stress magnitude (MPa) |
|---|---|---|
| Elastic constitutive response | 0 | 0 |
| Elastic constitutive response | 0.0000027292936320483034 | 0.2 |
| Elastic constitutive response | 0.000005458587264096607 | 0.4 |
| Elastic constitutive response | 0.00000818788089614491 | 0.6000000000000001 |
| Elastic constitutive response | 0.000010917174528193213 | 0.8 |
| Elastic constitutive response | 0.000013646468160241516 | 1 |
| Elastic constitutive response | 0.00001637576179228982 | 1.2000000000000002 |
| Elastic constitutive response | 0.000019105055424338124 | 1.4000000000000001 |
| Elastic constitutive response | 0.000021834349056386427 | 1.6 |
| Elastic constitutive response | 0.00002456364268843473 | 1.8 |
| Elastic constitutive response | 0.000027292936320483033 | 2 |
| Elastic constitutive response | 0.00003002222995253134 | 2.2 |
| Elastic constitutive response | 0.00003275152358457964 | 2.4000000000000004 |
| Elastic constitutive response | 0.000035480817216627945 | 2.6 |
| Elastic constitutive response | 0.00003821011084867625 | 2.8000000000000003 |
| Elastic constitutive response | 0.00004093940448072455 | 3 |
| Elastic constitutive response | 0.000043668698112772854 | 3.2 |
| Elastic constitutive response | 0.000046397991744821164 | 3.400000000000001 |
| Elastic constitutive response | 0.00004912728537686946 | 3.6 |
| Elastic constitutive response | 0.00005185657900891777 | 3.8000000000000007 |
| Elastic constitutive response | 0.000054585872640966066 | 4 |
| Elastic constitutive response | 0.000057315166273014376 | 4.2 |
| Elastic constitutive response | 0.00006004445990506268 | 4.4 |
| Elastic constitutive response | 0.00006277375353711098 | 4.6000000000000005 |
| Elastic constitutive response | 0.00006550304716915928 | 4.800000000000001 |
| Elastic constitutive response | 0.00006823234080120759 | 5 |
| Elastic constitutive response | 0.00007096163443325589 | 5.2 |
| Elastic constitutive response | 0.00007369092806530419 | 5.4 |
| Elastic constitutive response | 0.0000764202216973525 | 5.6000000000000005 |
| Elastic constitutive response | 0.00007914951532940081 | 5.800000000000002 |
| Elastic constitutive response | 0.0000818788089614491 | 6 |
| Elastic constitutive response | 0.0000846081025934974 | 6.2 |
| Elastic constitutive response | 0.00008733739622554571 | 6.4 |
| Elastic constitutive response | 0.00009006668985759402 | 6.600000000000001 |
| Elastic constitutive response | 0.00009279598348964233 | 6.800000000000002 |
| Elastic constitutive response | 0.00009552527712169062 | 7 |
| Elastic constitutive response | 0.00009825457075373892 | 7.2 |
| Elastic constitutive response | 0.00010098386438578722 | 7.4 |
| Elastic constitutive response | 0.00010371315801783554 | 7.600000000000001 |
| Elastic constitutive response | 0.00010644245164988384 | 7.800000000000001 |
| Elastic constitutive response | 0.00010917174528193213 | 8 |
| Elastic constitutive response | 0.00011190103891398043 | 8.2 |
| Elastic constitutive response | 0.00011463033254602875 | 8.4 |
| Elastic constitutive response | 0.00011735962617807705 | 8.600000000000001 |
| Elastic constitutive response | 0.00012008891981012536 | 8.8 |
| Elastic constitutive response | 0.00012281821344217367 | 9.000000000000002 |
| Elastic constitutive response | 0.00012554750707422196 | 9.200000000000001 |
| Elastic constitutive response | 0.00012827680070627025 | 9.4 |
| Elastic constitutive response | 0.00013100609433831857 | 9.600000000000001 |
| Elastic constitutive response | 0.00013373538797036689 | 9.800000000000002 |
| Elastic constitutive response | 0.00013646468160241517 | 10 |
| Elastic constitutive response | 0.00013919397523446346 | 10.2 |
| Elastic constitutive response | 0.00014192326886651178 | 10.4 |
| Elastic constitutive response | 0.0001446525624985601 | 10.600000000000001 |
| Elastic constitutive response | 0.00014738185613060839 | 10.8 |
| Elastic constitutive response | 0.0001501111497626567 | 11.000000000000002 |
| Elastic constitutive response | 0.000152840443394705 | 11.200000000000001 |
| Elastic constitutive response | 0.00015556973702675328 | 11.4 |
| Elastic constitutive response | 0.00015829903065880163 | 11.600000000000003 |
| Elastic constitutive response | 0.00016102832429084991 | 11.8 |
| Elastic constitutive response | 0.0001637576179228982 | 12 |
| Elastic constitutive response | 0.00016648691155494652 | 12.200000000000001 |
| Elastic constitutive response | 0.0001692162051869948 | 12.4 |
| Elastic constitutive response | 0.00017194549881904313 | 12.600000000000001 |
| Elastic constitutive response | 0.00017467479245109142 | 12.8 |
| Elastic constitutive response | 0.0001774040860831397 | 13 |
| Elastic constitutive response | 0.00018013337971518805 | 13.200000000000003 |
| Elastic constitutive response | 0.00018286267334723634 | 13.400000000000002 |
| Elastic constitutive response | 0.00018559196697928465 | 13.600000000000003 |
| Elastic constitutive response | 0.00018832126061133294 | 13.8 |
| Elastic constitutive response | 0.00019105055424338123 | 14 |
| Elastic constitutive response | 0.00019377984787542955 | 14.200000000000001 |
| Elastic constitutive response | 0.00019650914150747784 | 14.4 |
| Elastic constitutive response | 0.00019923843513952616 | 14.600000000000001 |
| Elastic constitutive response | 0.00020196772877157445 | 14.8 |
| Elastic constitutive response | 0.00020469702240362273 | 15 |
| Elastic constitutive response | 0.00020742631603567108 | 15.200000000000003 |
| Elastic constitutive response | 0.00021015560966771937 | 15.4 |
| Elastic constitutive response | 0.00021288490329976768 | 15.600000000000001 |
| Elastic constitutive response | 0.00021561419693181597 | 15.8 |
| Elastic constitutive response | 0.00021834349056386426 | 16 |
| Elastic constitutive response | 0.00022107278419591258 | 16.200000000000003 |
| Elastic constitutive response | 0.00022380207782796087 | 16.4 |
| Elastic constitutive response | 0.0002265313714600092 | 16.6 |
| Elastic constitutive response | 0.0002292606650920575 | 16.8 |
| Elastic constitutive response | 0.00023198995872410582 | 17.000000000000004 |
| Elastic constitutive response | 0.0002347192523561541 | 17.200000000000003 |
| Elastic constitutive response | 0.0002374485459882024 | 17.400000000000002 |
| Elastic constitutive response | 0.00024017783962025071 | 17.6 |
| Elastic constitutive response | 0.000242907133252299 | 17.8 |
| Elastic constitutive response | 0.00024563642688434735 | 18.000000000000004 |
| Elastic constitutive response | 0.00024836572051639564 | 18.200000000000003 |
| Elastic constitutive response | 0.0002510950141484439 | 18.400000000000002 |
| Elastic constitutive response | 0.0002538243077804922 | 18.6 |
| Elastic constitutive response | 0.0002565536014125405 | 18.8 |
| Elastic constitutive response | 0.00025928289504458885 | 19.000000000000004 |
| Elastic constitutive response | 0.00026201218867663714 | 19.200000000000003 |
| Elastic constitutive response | 0.0002647414823086854 | 19.400000000000002 |
| Elastic constitutive response | 0.00026747077594073377 | 19.600000000000005 |
| Elastic constitutive response | 0.00027020006957278206 | 19.800000000000004 |
| Elastic constitutive response | 0.00027292936320483035 | 20 |
- Nominal stress magnitude
- 20 MPa
- Strain magnitude
- 0.0002729 —
- Demand / measured strength
- 0.05 —
All recorded readouts
- Nominal stress magnitude
- 20 MPa
- Strain magnitude
- 0.0002729 —
- Demand / measured strength
- 0.05 —
- Linked laminate thickness
- 2 mm
Small-strain analytical compression. Fixture contact and post-failure behavior are excluded.
About this ASTM reference
Standard Test Method for Compressive Properties of Polymer Matrix Composite Materials Using a Combined Loading Compression (CLC) Test Fixture
Active catalog edition checked October 10, 2026. The official standard defines the physical method; the CDS example below has a narrower modeling scope. Full procedures remain on ASTM’s site.
Find this setup in Workbench
Opens the connected guided study. Select the matching ASTM setup in the Test menu to inspect its fixture.
What this CDS case represents
Read the actual ASTM standard ↗Small-strain analytical compression. Fixture contact and post-failure behavior are excluded.
This analytical or measured-data model provides its own curves and metrics. Synchronized failure playback is not supported; a mounted fixture view does not imply that contact, crack growth or impact history is solved.
Model basis · equation and interpretation
σ = P/(wt), ε = σ/Ex, δ = εL.
P is compressive force magnitude, w width, t linked thickness, Ex linked axial modulus and L gauge length. The elastic shortening δ is specimen deformation, not crosshead travel. Measured compressive strength is an independent input, not predicted from Ex. The small-strain limit is 2%.
Instructional model comparison, not experimental validation or ASTM certification. Physical testing requires the licensed standard and a qualified test program.