Deformation Maps for Bolted T-Stubs

Abstract

Deformation maps on the plastic and ultimate failure of T-stubs with a single bolt-row in tension are developed. The maps condense a large body of information within a two dimensional parameters space onto which different modes of deformation, including the régime boundaries, are plotted for any practical combination of geometric and material properties encountered in a T-stub. Its fidelity is demonstrated with experimental data from literature, and through a detailed parametric investigation by high-fidelity finite element analysis. The predictive capability of two existing analytical models are also assessed against predictions by the finite element model. Their shortcomings, and applicability, are critically assessed and discussed.

Failure and detachment path of impulsively loaded plates

“…where ε nom and σ nom are the nominal strain and stress, respectively, σ nom N = 411 MPa is the value of stress at necking, as reported in Fig. 3, and σ indicates the hypothetical stress in the absence of damage [21,30]. Rupture is identified from the softening branch of the nominal stress-strain curve as the last point before the complete loss of load-carrying capacity.…”

“…The two parameters are calibrated performing simulations that reproduce the uniaxial tensile test, following an iterative procedure [30]. In the first step, the dogbone specimen (geometry R0 from…”

Structural Response of Wire Arc Additively Manufactured Steel T‐stub Connections

“…The present study focusses on WAAM connections, specifically T-stubs. Connections play a crucial role in the behaviour of steel structures, and their design and fabrication are often complex and costly [7]. T-stubs in tension have been extensively tested in the past because their behaviour represents the response of the key components in a wide range of structural steel joints [8,9].…”