Static strength analysis of riveted joints
2021 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE credits
Student thesisAlternative title
Hållfasthetsanalys av nitförband (Swedish)
Abstract [en]
The aim of the study was to develop a methodology for the static strength and failure mode simulation of hot-driven riveted joints. The purpose was to be able to accurately estimate a rivet joints static strength behaviour and its failure mode without relying on experiments in order to save both time and resources during the design of joints. The non-linear Finite Element Analysis (FEA) modelling framework considered the rivet joints configurations and geometry, the material properties of the plate and the rivet as well as the clamping force of the hot-driven rivet. Using experimental data from literature the modelling framework is validated. It is shown that the modelling framework can capture the shear strength behaviour of different configurations of rivet joints as well as predict four different failure modes in the joint. Those failure modes being: rivet shear failure, bearing at the rivet hole of the plate and, failure in the net section of the plate. The effect of the clamping force from the rivet was investigated. It could be seen that the strength of the joint increased with the increase in clamping force.
Abstract [sv]
Studiens mål var att utveckla en metodologi för simulering av brottgränsen samt brottyperna i nitade förband. Syftet var att kunna uppskatta nitförbandets brottgräns samt brottyperna med hög precision utan att förlita sig på experiment och därmed spara både tid och resurser under dimensionering av förband. Det ickelinjära Finit Element Analys modellramverket beaktade nitförbandets dimensioner, materialegenskaperna av plattan och niten samt klämkraften från den varmslagna niten. Med experimentella data från litteraturen validerades modellramverket Studien visar att modellramverket kan fånga beteendet för skjuvhållfastheten för olika konfigurationer av nitförband samt förutspå fyra olika brottyper i nitförbanden. Effekten avklämkraften från niten undersöktes också. Studien visade att hållfastheten av nitförbandet ökade med en större klämkraft.
Place, publisher, year, edition, pages
2021. , p. 23
Series
TRITA-SCI-GRU ; 2021:336
Keywords [en]
Rivet Joints, Hot-driven solid rivets, Finite Element Analysis, Ultimate strength, Failure analysis
Keywords [sv]
Nitförband, Finit Element Analys, Brottgräns
National Category
Applied Mechanics
Identifiers
URN: urn:nbn:se:kth:diva-321609OAI: oai:DiVA.org:kth-321609DiVA, id: diva2:1711839
External cooperation
Cargotec Sweden AB Bromma Conquip
Subject / course
Solid Mechanics
Educational program
Master of Science - Engineering Mechanics
Supervisors
Examiners
2022-11-222022-11-182022-11-22Bibliographically approved