Composites Engineering最新文献_第4页

Fracture propagation near a frictionally - constrained fiber interface 摩擦约束纤维界面附近的断裂扩展

Composites Engineering Pub Date : 1995-01-01 DOI: 10.1016/0961-9526(95)93977-4

Michael C. Larson

{"title":"Fracture propagation near a frictionally - constrained fiber interface","authors":"Michael C. Larson","doi":"10.1016/0961-9526(95)93977-4","DOIUrl":"10.1016/0961-9526(95)93977-4","url":null,"abstract":"<div><p>This work provides a three-dimensional numerical fracture mechanics analysis of a crack periphery as it propagates through a brittle matrix and encounters an individual brittle fiber. The surface integral method, based upon a distribution of singular fundamental solutions, is used to represent both the cracks and the coupled interfacial sliding zone. The interfacial frictional tractions are assumed to satisfy a Coulomb relationship and are determined iteratively from the stress induced by the matrix crack, the stress induced by the developing slip, and the initial normal compressive interfacial stress (i.e. from setting or thermal mismatch). Simulations of an initially long straight crack front moving toward and past a fiber for different interfacial frictional characteristics were conducted. The implications for tailoring fiber/matrix interfaces to optimize the global toughening effect are discussed. If the interface between fiber and matrix is cohesive enough (but not too cohesive) then tractions which develop at the interface may effectively retard the local growth of a matrix crack. Raising the friction coefficient (or cohesion) at the interface must, however, be balanced against the potential for fiber failure in the high stress zone near the matrix crack periphery. The implications frictional slippage holds for inhibiting and possibly arresting small matrix cracks are emphasized.</p></div>","PeriodicalId":100298,"journal":{"name":"Composites Engineering","volume":"5 1","pages":"Pages 25-36"},"PeriodicalIF":0.0,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0961-9526(95)93977-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75630430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Laser effects on the dynamic response of laminated composites 激光对层合复合材料动态响应的影响

Composites Engineering Pub Date : 1995-01-01 DOI: 10.1016/0961-9526(95)00049-S

J.K. Chen, A. Perea, F.A. Allahdadi

{"title":"Laser effects on the dynamic response of laminated composites","authors":"J.K. Chen, A. Perea, F.A. Allahdadi","doi":"10.1016/0961-9526(95)00049-S","DOIUrl":"https://doi.org/10.1016/0961-9526(95)00049-S","url":null,"abstract":"<div><p>Transient response of a moving composite laminate suddenly subjected to combined mechanical load and high intensity laser irradiation was investigated. The three thermal effects, which are caused by rapid laser heating and influence the structure's dynamic behavior, are material property degradation, burn-out and induced thermal loading. To determine temperature distribution and material burn-out due to the high laser energy deposition, a modified Crank-Nicholson finite difference scheme, which includes the effects of surface ablation, degradation of thermophysical properties at elevated temperatures and heat losses from radiation and convection, was employed. The predicted thermal results were then used for thermal loading calculation and, subsequently, forced vibration analysis. Both small and large deflection composite plate theories were adopted. The inclusion of temperature-dependent mechanical properties in the analysis was also of particular importance. It was shown that the escalation or reduction of vibration response of a laminated composite subjected to transverse loads by laser irradiation depends not only upon the laser intensity, but also, which plate surface is irradiated. It was also found that a higher power laser irradiation ensures neither greater escalation not reduction of the vibration.</p></div>","PeriodicalId":100298,"journal":{"name":"Composites Engineering","volume":"5 9","pages":"Pages 1135-1147"},"PeriodicalIF":0.0,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0961-9526(95)00049-S","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91754484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11

List of reviewers 审稿人名单

Composites Engineering Pub Date : 1995-01-01 DOI: 10.1016/0961-9526(95)90005-5

引用次数: 0

Consistent higher-order analysis on shock response of cross-ply curved panels 交叉铺层弯曲板冲击响应的一致高阶分析

Composites Engineering Pub Date : 1995-01-01 DOI: 10.1016/0961-9526(94)00098-T

C.C. Chao, T.P. Tung

引用次数: 4

Single-shot explosive welding technique for the fabrication of multilayered metal base composites: effect of welding parameters leading to optimum bonding condition 多层金属基复合材料单发爆炸焊接技术:焊接参数对最佳焊接条件的影响

Composites Engineering Pub Date : 1995-01-01 DOI: 10.1016/0961-9526(95)00059-V

K. Hokamoto , A. Chiba , M. Fujita , T. Izuma

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引用次数: 42

Determination of fiber-matrix interphase effective elastic moduli from ultrasonic phase velocity and attenuation data 利用超声相速度和衰减数据测定纤维-基质相间有效弹性模量

Composites Engineering Pub Date : 1995-01-01 DOI: 10.1016/0961-9526(95)00038-O

S.I. Rokhlin, Y.C. Chu, W. Huang

引用次数: 2

Interlaminar stress analysis of composites: Layer-wise shell finite elements including transverse strains 复合材料层间应力分析:含横向应变的分层壳有限元

Composites Engineering Pub Date : 1995-01-01 DOI: 10.1016/0961-9526(95)00020-N

Yavuz Basar, Yunhe Ding

引用次数: 21

Weight versus strength: A case study 重量与力量：一个案例研究

Composites Engineering Pub Date : 1995-01-01 DOI: 10.1016/0961-9526(95)00047-Q

Genady P. Cherepanov

引用次数: 0

Thermal shock behavior of fiber-reinforced ceramic matrix composites 纤维增强陶瓷基复合材料的热冲击行为

Composites Engineering Pub Date : 1995-01-01 DOI: 10.1016/0961-9526(95)00051-N

Raj N. Singh, Hongyu Wang

引用次数: 38

Fracture toughness and low cycle fatigue of 6061/A12O3p composites 6061/A12O3p复合材料的断裂韧性和低周疲劳性能

Composites Engineering Pub Date : 1995-01-01 DOI: 10.1016/0961-9526(95)00022-F

N.P. Hung, W. Zhou, E.T. Peh, C.S. Chan

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引用次数: 6