The aim of this research is to investigate the pin/hole contact stress of a composite laminate and failure modes when submitted to tensile bearing tests. The limit loads and failure modes are evaluated as a function of pin diameter and hole position. Analyzing the joint geometry effect on the fracture mechanisms, a failure map is obtained, identifying three regions of typical failure modes of mechanically fastened joints. A theoretical approach is proposed to identify the field of each fracture mode to obtain a simple experimental methodology to support the design of a particular joint laminate. In addition, a simplified numerical model is proposed to evaluate near the hole the stress/strain distribution under tensile bearing load. This allows one to better understand the relevant dependence of the failure modes from the geometry of the joint for a given composite laminate.

BORSELLINO C, CALABRESE L, DI BELLA G, FIORE V, & VALENZA A (2007). Failure map of composite laminate mechanical joint. JOURNAL OF COMPOSITE MATERIALS, 41, 951-964 [10.1177/0021998306067257].

Failure map of composite laminate mechanical joint

DI BELLA, Guido;FIORE, Vincenzo;VALENZA, Antonino
2007

Abstract

The aim of this research is to investigate the pin/hole contact stress of a composite laminate and failure modes when submitted to tensile bearing tests. The limit loads and failure modes are evaluated as a function of pin diameter and hole position. Analyzing the joint geometry effect on the fracture mechanisms, a failure map is obtained, identifying three regions of typical failure modes of mechanically fastened joints. A theoretical approach is proposed to identify the field of each fracture mode to obtain a simple experimental methodology to support the design of a particular joint laminate. In addition, a simplified numerical model is proposed to evaluate near the hole the stress/strain distribution under tensile bearing load. This allows one to better understand the relevant dependence of the failure modes from the geometry of the joint for a given composite laminate.
Settore ING-IND/22 - Scienza E Tecnologia Dei Materiali
BORSELLINO C, CALABRESE L, DI BELLA G, FIORE V, & VALENZA A (2007). Failure map of composite laminate mechanical joint. JOURNAL OF COMPOSITE MATERIALS, 41, 951-964 [10.1177/0021998306067257].
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10447/15450
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