scholarly journals Stress distributions in bluntly-notched ceramic composite laminates

2014 ◽  
Vol 60 ◽  
pp. 15-23 ◽  
Author(s):  
Varun P. Rajan ◽  
Frank W. Zok
Keyword(s):  
Composite Laminates ◽  
Ceramic Composite ◽  
Stress Distributions

Delamination Resistance of Two Hybrid Ceramic-Composite Laminates

2005 ◽  
Vol 80 (12) ◽  
pp. 3029-3037 ◽  
Author(s):  
Willard A. Cutler ◽  
Frank W. Zok ◽  
Fred F. Lange ◽  
Panos G. Charalambides
Keyword(s):  
Composite Laminates ◽  
Ceramic Composite ◽  
Delamination Resistance ◽  
Hybrid Ceramic ◽  
Two Hybrid

Elastic Damage Analysis of Interlaminar Stress Distributions in Symmetrical Composite Laminates with Edge Delamination Cracks

1994 ◽  
Vol 208 (1) ◽  
pp. 1-11 ◽  
Author(s):  
C L Chow ◽  
F Yang
Keyword(s):  
Composite Laminates ◽  
Three Dimensional ◽  
Tensile Load ◽  
Uniaxial Tensile ◽  
Stress Distributions ◽  
Element Analysis ◽  
Dimensional Finite Element ◽  
Three Dimensional Finite Element ◽  
Edge Delamination ◽  
Delamination Cracks

This paper is intended to present a study of elastic-damaged behaviour of symmetrical composite laminates with edge delamination cracks subjected to uniformly applied uniaxial tensile load. The response of composite laminates is investigated by a quasi-three-dimensional finite element analysis including the damage characterization of constituent plies. Of principal concern are the effects of edge delamination cracks as well as the influence of damage on stress distributions in graphite/epoxy [0/90°]s, [90/0°]s and [±45°], laminates. The computed results between the behaviours of laminates with stiffness damage consideration and those of geometrically similar laminates without stiffness damage are compared and the significance of damage in stress analysis of fibre-reinforced composite materials is elucidated.

scholarly journals Damage characterisation of thermally shocked cross-ply ceramic composite laminates

2006 ◽  
Vol 41 (3) ◽  
pp. 951-962 ◽  
Author(s):  
C. Kastritseas ◽  
P. A. Smith ◽  
J. A. Yeomans
Keyword(s):  
Composite Laminates ◽  
Ceramic Composite

scholarly journals Evaluate the Fatigue Life of CFRC Subjected to Coupled Thermo–Mechanical Loading

Materials ◽  
2019 ◽  
Vol 12 (18) ◽  
pp. 2886
Author(s):  
Junjie Ye ◽  
Wangpeng He ◽  
Yang Shi ◽  
Yiwei Wang ◽  
Gaigai Cai ◽  
...  
Keyword(s):  
Experimental Data ◽  
Ambient Temperature ◽  
Mechanical Loading ◽  
Fatigue Failure ◽  
Composite Laminates ◽  
Elevated Temperatures ◽  
Temperature Cycling ◽  
External Loading ◽  
Stress Distributions ◽  
Temperature Variations

Mechanical properties of composites manufactured by high-temperature polymer polyether ether ketone (PEEK) with continuous reinforced fibers are closely dependent on ambient temperature variations. In order to effectively study fatigue failure behaviors of composites under the coupled thermo–mechanical loading, a well-established microscopic model based on a representative volume element (RVE) is proposed in this paper. Stiffness degradation behaviors of the composite laminates at room and elevated temperatures are firstly investigated, and their failure strengths are compared with experimental data. To describe the fatigue behaviors of composites with respect to complex external loading and ambient temperature variations, a new fatigue equation is proposed. A good consistency between theoretical results and experimental data was found in the cases. On this basis, the temperature cycling effects on the service life of composites are also discussed. Microscopic stress distributions of the RVE are also discussed to reveal their fatigue failure mechanisms.

scholarly journals An elastic–plastic constitutive model for ceramic composite laminates

2014 ◽  
Vol 66 ◽  
pp. 44-57 ◽  
Author(s):  
Varun P. Rajan ◽  
John H. Shaw ◽  
Michael N. Rossol ◽  
Frank W. Zok
Keyword(s):  
Constitutive Model ◽  
Composite Laminates ◽  
Ceramic Composite ◽  
Elastic Plastic

scholarly journals Evaluation of the Ko-Len Model for Enterlaminar Stresses in Composite Laminates with an Open Hole

1996 ◽  
Vol 5 (5) ◽  
pp. 096369359600500 ◽  
Author(s):  
F. Z. Hu ◽  
C. Soutis
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Composite Laminates ◽  
Three Dimensional ◽  
Tensile Loading ◽  
Stress Distributions ◽  
Element Analysis ◽  
Open Hole ◽  
Dimensional Finite Element ◽  
Three Dimensional Finite Element

The purpose of this paper is to evaluate a recently developed analytical model [1] which determines the interlaminar stress distributions around a circular hole in symmetric composite laminates under in-plane tensile loading. For this purpose, a three-dimensional finite element analysis is performed and the stress distributions for symmetric cross-ply laminates are presented This work is relevant to the prediction of delamination onset load and location around the discontinuity.

Stress Analysis in Single and Multi Fastened Single-Lap Composite Joints

2006 ◽  
Vol 306-308 ◽  
pp. 823-828
Author(s):  
Heoung Jae Chun ◽  
J.M. Choi ◽  
Joon Hyung Byun
Keyword(s):  
Stress Analysis ◽  
Composite Laminates ◽  
Diameter Ratio ◽  
Hole Diameter ◽  
Stacking Sequence ◽  
Stress Distributions ◽  
Engineering Structures ◽  
Adequate Knowledge ◽  
Fabric Composite ◽  
Mechanical Fastening

The use of composite materials in many engineering structures has increased recently. The structures are jointed together by single or multiple bolted mechanical fastening to transfer the loads from one member to another. Applications of such joints require adequate knowledge of stress distribution in the vicinity of the boundary of pin hole. In this study, stress analysis is conducted with finite element method to study the stress distributions in the vicinities of both single-pin and multi-pin loaded holes of multi-axial warp knit fabric composite laminates. The perfect fit condition and contact with friction between the pin and hole without lateral constrain are assumed in the analysis. Effects of friction, stacking sequence, ratio of edge distance over hole diameter, ratio of width over hole diameter, number of pins, number of rows, number of column and hole patterns are evaluated. The results show they have a significant influence on joint performance.

Sign in / Sign up

Export Citation Format

Share Document