in this study, behavior of pin-loaded glass fiber reinforced with polyethylene laminated composites with different stacking sequence and different dimensions has been observed experimentally and stress analysis was performed using ansys software. the aim is to investigate stresses, failure strength and failure mode of composite laminates containing a pin loaded hole when the material exhibits l...

There are an innumerable number of precision automotive assemblies which use pinned joints for alignment. Many of these suffer from poor performance and cost/quality issues because pinned joints are inherently over-constrained. This paper introduces the Quasi-Kinematic Coupling (QKC) as a solution for precision (better than 10 microns) automotive assemblies. For these applications, QKCs require...

The effect of through-thickness reinforcement by thin 1 mm steel needles (z-pins) on the static tensile strength of double-lap joints of a carbon/epoxy composite was investigated. Two types of joints-z-pinned and hybrid (including glued ones)-were considered. The joints were reinforced in the overlap region with 9, 25, or 36 z-pins. Comparing mechanical properties of the double-lap joints with ...

Plays of joints strongly influence the dynamics of the large deployable space structures. In this paper, dynamic simulation of space structures with pinned joints is discussed. The study can be simply divided into two parts: the flexible effect of structure is simulated by MSC/NASTRAN, and the global motion of rigid body by DADS. The details of how to select the deformation modes in MSC/NASTRAN...

Drift pinned joints are generally used in glulam or sawn timber structure, and evaluation methods for calculating characteristic values such as ultimate load, yield load initial stiffness have been established.

Recommendations Executive Summary This report evaluates the assumption that joints which display semirigid behaviour can be modelled as frictionless pinned joints in building design calculations. The idealisation is evaluated by comparing computer simulations incorporating this assumption with experimental test data for the actual structure. The results show that the idealisation is safe and is...

1. Abstract In this paper, a genetic algorithm is proposed for discrete minimal weight design of steel planar frames with semi-rigid beam-tocolumn connections. The frame elements are constructed from a predetermined range of section profiles. Conventionally, the analysis of frame structures is based on the assumption that all connections are either frictionless pinned or fully rigid. Recent lim...

This paper presents the test results to characterise the moment-rotation response of nominally pinned joints in frames of pultruded shapes. Mimicking conventional steel construction the major-axis beamto-column joints are formed using pultruded FRP web cleats having steel bolting. There are two joint configurations with either a single row of three or two bolts per cleat leg. Testing is conduct...