Estimation of residual stresses in laminated composites using field measurements on a cracked sample
Source abstract
Abstract
Today, advanced damage models taking into account residual stresses are available. In particular, microcracking as a degradation mechanism in laminates is very sensitive to manufacturing-induced stresses. However, these stresses are often introduced through a model parameter whose identification remains difficult or requires time-consuming and costly additional tests. Here, we propose a relatively simple method based on the observation of the displacement field associated with the creation of a transverse crack in a crosswise laminate. Subsequently, this displacement field can be reinterpreted according to the model being used in order to build the quantity required by the model.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Mechanical Behavior of Composites · Optical measurement and interference techniques · Ultrasonics and Acoustic Wave Propagation
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (28)
Show source-provided references
1. Residual stresses in thermoplastic composites – a study of the literature. Part III: effects of thermal residual stresses10.1016/j.compositesa.2006.12.005 ↗
2. Residual stresses in thermoplastic composites – a study of the literature. Part I: formation of residual stresses10.1016/j.compositesa.2005.12.025 ↗
3. Warping in advanced composite tools with varying angles and radii10.1016/S1359-835X(97)00045-6 ↗
4. Transverse cracking and delamination in cross-ply glass-fiber and carbon-fiber reinforced plastic laminates: Static and fatigue loading10.1115/1.1519557 ↗
5. Nairn J, Hu S, Matrix microcracking. In: Taljera, editor. Damage mechanics of composite materials, 1994. p. 187–243.
6. Fracture mechanics of composites with residual thermal stresses10.1115/1.2788985 ↗
7. The effects of residual stress on the non-linear behaviour of composite laminates. Part I: experimental results and residual-stress assessments10.1016/S0266-3538(00)00119-6 ↗
8. The effect of residual stress on the non-linear behaviour of composite laminates. Part II: layer, laminate non-linear models and the effect of residual stress on the model parameters10.1016/S0266-3538(00)00224-4 ↗
9. Finite element based prediction of process-induced deformation of autoclaved composite structures using 2d process analysis and 3d structural analysis10.1016/S0263-8223(03)00117-X ↗
10. Numerical analysis of cure temperature and internal stresses in thin and thick rtm parts10.1016/j.compositesa.2004.10.021 ↗
11. Residual stresses in thermoplastic composites – a study of the literature – Part II: experimental techniques10.1016/j.compositesa.2006.07.002 ↗
12. Effect of residual shear strain on the cured shape of unsymmetric cross-ply thin laminates10.1016/0266-3538(90)90071-C ↗
13. Determining the residual welding stresses at depth in metals
14. Beaney E, Measurement of sib-surface stress, CEGB Report Rd/B/N4325.
15. Measurement of residual stress in thick section composite laminates using the deep-hole method10.1016/j.ijmecsci.2005.06.011 ↗
16. Full field methods and residual stress analysis in orthotropic material. Part I: linear approach10.1016/j.ijsolstr.2007.06.012 ↗
17. Full field methods and residual stress analysis in orthotropic material. Part II: nonlinear approach10.1016/j.ijsolstr.2007.06.002 ↗
18. Transverse cracking of symmetric and unsymmetric glass-fibre/epoxy-resin laminates10.1016/S0266-3538(97)00082-1 ↗
19. Crossman F, Wang A, The dependence of transverse cracking and delamination on ply thickness in graphite/epoxy laminates. In: Reifsnider K, editor. Damage in composite materials. ASTM-STP 775; 1982. p. 118–39.10.1520/STP34324S ↗
20. Highsmith A, Reifsnider K, Stiffness reduction mechanism in composite laminates. In: Reifsnider K, editor. Damage in Composite Materials. ASTM-STP 775; 1982, p. 103–17.10.1520/STP34323S ↗
21. Analysis of cracked laminates: a variational approach10.1016/0167-6636(85)90011-0 ↗
22. The strain energy release rate of composite microcracking: a variational approach10.1177/002199838902301102 ↗
23. Micromechanical characterization of local deformation in interlaminar-toughened cfrp laminates10.1016/S1359-835X(98)00067-0 ↗
24. Nairn JA, Applications of finite fracture mechanics for predicting fracture events in composites. In: Proc. 5th Int. Conf. on Def. and Fract. of Comp. Mat., London, UK, 1999, p. 1.
25. Determination of displacements using an improved digital correlation method10.1016/0262-8856(83)90064-1 ↗
26. Application of an optimized digital correlation method to planar deformation analysis10.1016/0262-8856(86)90057-0 ↗
27. “finite-element” displacement fields analysis from digital images: application to portevin-le châtelier bands.10.1007/s11340-006-9824-8 ↗
28. On a damage mesomodel for laminates: micro-meso relationships, possibilities and limits10.1016/S0266-3538(01)00109-9 ↗