The random crack core model for predicting the longitudinal tensile strengths of unidirectional composites

Preparation of a High‐Performance Anti‐Aging Polypropylene Composite with Titanium Oxide and Calcium Sulfate Shielding Agents

“…Because of the small size and large strength of calcium sulfate whisker can play a skeleton role when added to polymer materials, and the mechanical properties of CSW often significantly improve [28–30] . At the same time, calcium sulfate whiskers have good compatibility and good interface binding strength, the advantages of ultra‐fine inorganic filler and enhanced fiber can be used as efficient functional materials, based on non‐toxic characteristics as additives added to PP will not aggravate the harm caused by white pollution [31–33] …”

“…Previous studies have demonstrated that the use of nano‐TiO 2 as a filler significantly impacts the aging performance of PP products. Factors such as material roughness [34–36] and interface force [31–33] also affect the performance [37–39] . In this study, TiO 2 ‐PAN (TP) and CSW‐PAN (CP) were created by coating the product of silane coupling agent KH570 with mild reaction conditions and wide application.…”

Preparation of high-performance anti-aging polypropylene by modified nano-TiO2 and calcium sulfate whisker grafted acrylonitrile composite PP

“…[18][19][20] CSW has high strength and high modulus, which make it a popular choice for developing enhanced and modied polymer materials. [21][22][23] The surface of CSW can be modied with a coupling agent to make it organic, 24,25 thus improving its compatibility with polymer materials. [26][27][28] When acrylonitrile is graed onto CSW, it can also partially absorb UV light due to the presence of the -CN group.…”

Study on static and fatigue behaviors of carbon fiber bundle and the statistical distribution by experiments

“…Joffe et al 13 showed that two-parameter Weibull distribution could be used to describe the tensile strength of fibers at a fixed length and some experimental research for cellulose fibers were performed. Yuan et al 14 studied the static strength distribution laws of single fibers and a theory of random crack cores was presented to predict the strength of composites. Zhu et al 15 carried out research on the fatigue characteristic of carbon fiber bundles, which had experienced 1800 C heat treatment in nitrogen atmosphere.…”

“…Yuan et al. 14 studied the static strength distribution laws of single fibers and a theory of random crack cores was presented to predict the strength of composites. Zhu et al.…”