Progressive Damage Analysis of Composite Laminates Under Compression

Khedkar, S (2014) Progressive Damage Analysis of Composite Laminates Under Compression. Masters thesis, Indian Institute of Technology, Hyderabad.

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Abstract

The behavior and strength of carbon ber reinforced polymer (CFRP) panels subjected to tensile loading has been studied extensively by various researchers over several decades. While its tensile behavior is well understood, but its compressive behavior is not. To better understand the compressive behavior, it is important to develop accurate compression test method. In addition, the behavior of the CFRP laminates having open cut out act as stress raisers under given loading conditions. The structures are susceptible to damage near these discontinuities leading to progressive failure. The progressive failure analysis (PFA) broadly involves damage initiation, damage evolution and stiness degradation due to the damage. It becomes very complex in case of composites due to inhomogeneity, anisotropic nature and multiple failure modes.

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