[Back]

R. Heuer:
"Dynamic Analysis of sandwich beams with interlayer slip";
PAMM - Proceedings in Applied Mathematics and Mechanics, 3 (2003), 108 - 109.

Dynamic bending of sandwich beams composed of three symmetrically arranged layers are studied. If the layers are connected continuously by means of strong adhesives, the mechanical assumption of a rigid interconnection between the layers is reasonable, and basically two classes of theories can be applied: the equivalent-single-layer theories and the layerwise laminate theories. Furthermore, in some widely used structures, such as in composite steel-concrete beams or in layered wood systems connected with nails, rigid bond between the layers cannot be achieved. Due to relative deformation of the connectors an interlayer slip occurs, that can significantly affect both strength and deformation of the layered structure. Analyzing two special cases of interlaminar connections, i.e., "perfect bond" and "elastic interlayer slip", a complete analogy between the corresponding initial-boundary value problems is derived. Hence, the response of the beam with elastic interlayer slip can be determined directly from the solution of the perfectly bonded sandwich beam with moderately thick faces.

http://aleph.ub.tuwien.ac.at/F?base=tuw01&func=find-c&ccl_term=AC04403265

http://www.gamm-proceedings.com