This study deals with the edge effects in angle-ply composite laminates subjected to tensile test. The submodeling technique is used to achieve the numerical results. In a first step, a [45/–45]s laminated strip is studied, comparing the results with the previous approaches. The fulfilment of equilibrium equations by the stresses obtained numerically is studied to delimit the zone with inaccurate results due to the singularity of the problem. Antisymmetric configurations are analyzed enclosing the validity of the numerical results near the edges to the limits previously obtained. The aspect ratio and the orientation angle have been varied to analyze their effect.
DanielIMIshaiO. Engineering mechanics of composite materials, 2nd ed. New York: Oxford University Press, 2006.
2.
PipesRBPaganoNJ. Interlaminar stresses in Composite Laminates under Uniform Axial Extension. J Compos Mater1970; 4: 538–548.
3.
WangSSChoiI. Boundary-layer effects in composite laminates. Part 1. Free edge stress singularities. ASME J Appl Mech1982; 49: 541–548.
4.
WangSSChoiI. Boundary-layer effects in composite laminates. Part 2. Free edge stress solutions and basic characteristics. ASME J Appl Mech1982; 49: 549–560.
5.
Komorowski JP, Heath JBR, Lefebvre D, et al. Influence of edge effect on compression-tension fatigue life of toughened graphite/epoxy laminates. In: Proceedings of the 73rd meeting of the AGARD structures and materials panels, San Diego, CA, United States, 7–11 October 1991, pp.7–1, 7–7. Neuilly sur Seine, France: AGARD.
6.
KimTAtluriSN. Analysis of edge stresses in composite laminates under combined thermo-mechanical loading, using a complementary energy approach. Comput Mech1995; 16: 83–97.
7.
ZhangCYehHY. A variational approach for straight edge effect stresses in laminated composites. Compos Struct1998; 43: 243–254.
8.
TahaniMNosierA. Free edge stress analysis of general cross ply composite laminates under extension and thermal loading. Compos Struct2003; 60: 91–103.
9.
RobbinsDHReddyJN. Modeling of thick composites using a layerwise laminate theory. Int J Numer Methods Eng1993; 36: 655–677.
10.
KapuriaSKumariP. Multiterm extended Kantorovich method for three-dimensional elasticity solution of laminated plates. J Appl Mech2012; 79: 061018–1–061018-9.
11.
WangASDCrossmanFW. Calculation of edge stresses in multi-layer laminates by sub-structuring. J Compos Mater1978; 12: 76–83.
12.
IcardiUBertettoAM. An evaluation of the influence of geometry and of material properties at free edges and at corners of composite laminates. Comput Struct1995; 57: 555–571.
13.
LessardLBSchmidtASShokriehMM. Three-dimensional stress analysis of free-edge effects in a simple composite cross-ply laminate. Int J Solids Struct1996; 33: 2243–2259.
14.
JiangWGHenshallJL. Analysis of composite laminate beams using coupling cross-section finite element method. Appl Math Mech2006; 27: 1709–1718.
15.
NaciriTEhrlacherAChabotA. Interlaminar stress analysis with a new multiparticle modelization of multilayered materials (M4). Compos Sci Technol1998; 58: 337–343.
16.
NguyenVTCaronJF. A new finite element for free edge effect analysis in laminated composites. Comput Struct2006; 84: 1538–1546.
17.
NguyenVTCaronJF. Finite element analysis of free-edge stresses in composite laminates under mechanical and thermal loading. Compos Sci Technol2009; 69(1): 38–49.
18.
DuongVADiazADChataignerS. A layerwise finite element for multilayers with imperfect interfaces. Compos Struct2011; 93: 3262–3271.
19.
NguyenVTCaronJFSabK. A model for thick laminates and sandwich plates. Compos Sci Technol2005; 65: 475–489.
20.
WangSSYuanFG. A singular hybrid finite-element analysis of boundary-layer stresses in composite laminates. ASME J Appl Mech1983; 19: 825–837.
21.
WangSSYuanFG. A hybrid finite-element approach to composite laminate elasticity problems with singularities. ASME J Appl Mech1983; 50: 835–844.
22.
TianZZhaoFYangQ. Straight free-edge effects in laminated composites. Finite Elements Anal Des2004; 41: 1–14.
23.
IcardiUFerreroL. Layerwise zig-zag model with selective refinement across the thickness. Int J Numer Methods Eng2010; 84: 1085–1114.
24.
DavìGMilazzoA. Initial strain effects in multilayer composite laminates. Eng Anal Bound Elem2011; 25: 677–684.
25.
BogdanovichAEKizhakketharaI. Three-dimensional finite element analysis of double-lap composite adhesive bounded joint using submodeling approach. Compos: Part B1999; 30: 537–551.
