@Article{cmes.2022.020495,
AUTHOR = {Haoran Zhang, Yaxun Liu, Lisheng Liu, Xin Lai, Qiwen Liu, Hai Mei},
TITLE = {Implementation of OpenMP Parallelization of Rate-Dependent Ceramic Peridynamic Model},
JOURNAL = {Computer Modeling in Engineering \& Sciences},
VOLUME = {133},
YEAR = {2022},
NUMBER = {1},
PAGES = {195--217},
URL = {http://www.techscience.com/CMES/v133n1/48846},
ISSN = {1526-1506},
ABSTRACT = {A rate-dependent peridynamic ceramic model, considering the brittle tensile response, compressive plastic
softening and strain-rate dependence, can accurately represent the dynamic response and crack propagation
of ceramic materials. However, it also considers the strain-rate dependence and damage accumulation caused
by compressive plastic softening during the compression stage, requiring more computational resources for the
bond force evaluation and damage evolution. Herein, the OpenMP parallel optimization of the rate-dependent
peridynamic ceramic model is investigated. Also, the modules that compute the interactions between material
points and update damage index are vectorized and parallelized. Moreover, the numerical examples are carried
out to simulate the dynamic response and fracture of the ceramic plate under normal impact. Furthermore, the
speed-up ratio and computational efficiency by multi-threads are evaluated and discussed to demonstrate the
reliability of parallelized programs. The results reveal that the total wall clock time has been significantly reduced
after optimization, showing the promise of parallelization process in terms of accuracy and stability.},
DOI = {10.32604/cmes.2022.020495}
}