2014
DOI: 10.1016/j.polymer.2014.09.071
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A visco-elastoplastic constitutive model for large deformation response of polycarbonate over a wide range of strain rates and temperatures

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Cited by 65 publications
(63 citation statements)
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“…Scission crazing usually occurs at low temperatures and at a high strain rate, while disentanglement crazing occurs at high temperatures and at a low strain rate. In polycarbonate, disentanglement crazing due to accelerated molecular motion was found to occur at high temperature , but the related brittle property was not reported . Hence, details of the brittle behavior have not been explained, though the ductile‐to‐brittle transition by elevated temperature has been known for OD‐PC in the manufacture.…”
Section: Introductionmentioning
confidence: 99%
“…Scission crazing usually occurs at low temperatures and at a high strain rate, while disentanglement crazing occurs at high temperatures and at a low strain rate. In polycarbonate, disentanglement crazing due to accelerated molecular motion was found to occur at high temperature , but the related brittle property was not reported . Hence, details of the brittle behavior have not been explained, though the ductile‐to‐brittle transition by elevated temperature has been known for OD‐PC in the manufacture.…”
Section: Introductionmentioning
confidence: 99%
“…By the way, all the compressive test data used in this article were obtained from our previous work. [ 30 ] As seen in the Figure 6a, for PC material, the yield strength of tension is lower than that of compression whereas tensile elastic modulus is larger than compressive one. At plastic phase, in contrast with compressive curve, although the tensile stress experiences a rapid softening drop to the minimum value at smaller strain, it performs a more drastic hardening behavior with a steep slope afterward.…”
Section: Results and Analysismentioning
confidence: 88%
“…By the way, all the material parameters of original viscoelastoplastic model for PC compression behavior can be found in the literature. [ 30 ] Owing to the random alignments of molecular microstructure of polymers, they are often anisotropic on macroscopic performance. That is why compressive and tensile instantaneous moduli at reference phase E i ref in Table 1 are different.…”
Section: Damaged Viscoelasticitymentioning
confidence: 99%
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“…strength (Mulliken and Boyce 2006;Tjong and Meng 2000;Fu et al 2009;Yu et al 2014;Cao et al 2012). When polycarbonate experiences impact events, such as bird strikes and explosions, it encounters high strain-rate deformations at extreme temperatures (Cao et al 2014).…”
mentioning
confidence: 99%