Inlämning av Examensarbete / Submission of Thesis

Sepehr Rahili Khorasani BTH-AMT-EX--2012/D-07--SE, pp. 70. ING/School of Engineering, 2012.

The work

Författare / Author: Sepehr Rahili Khorasani,
Titel / Title: Finite-Element Simulations of Glulam Beams with Natural Cracks
Översatt titel / Translated title: Finit-elementsimulering av limträbalkar med naturliga spickor
Abstrakt Abstract:

Modeling and simulation of natural cracks and its propagation for glulam beams in numerical method frame work have been studied in this thesis. The aim of this study was to find out the influence of formed cracks on the Glulam beam load-carrying capacity. The simulation has been developed with the finite element calculation software ABAQUS. First the simple simulations were compared with previous available experimental results to achieve calibrated simulation model. Then simulation of long glulam with different natural cracks has been done based on calibration. This project has been focused on fracture mechanics and its effects on shear and bending capacity of the cracked glulam beam used in practical application by extended finite element method.

Populärvetenskaplig beskrivning / Popular science summary: Glued laminated timber beams are load-bearing members for construction systems, e.g. bridges, building, posts, etc. Typically, cracks caused by climatic changes can be formed on glulam beams and can have effects on load bearing capacity of the structures. The aim of this thesis is to be able to model and analyze the effects of these cracks on load capacity of glulam beam.
Ämnesord / Subject: Maskinteknik - Mechanical Engineering\General
Maskinteknik - Mechanical Engineering\Structural Mechanics
Nyckelord / Keywords: Glulam beams, Fracture mechanics, XFEM, Natural crack, ABAQUS, VCCT.

Publication info

Dokument id / Document id: houn-8ywc5k
Program:/ Programme Masters Programme in Mechanical Engineering 120 ECTS
Registreringsdatum / Date of registration: 10/09/2012
Uppsatstyp / Type of thesis: Masterarbete/Master's Thesis (120 credits)


Handledare / Supervisor: prof.Mats Ekevad, Dr.Karin Sandberg, Dr.Sharon Kao-Walter,,
Examinator / Examiner: Ansel Berghuvud
Organisation / Organisation: Blekinge Institute of Technology
Institution / School: ING/School of Engineering

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I samarbete med / In co-operation with: Luleå University of Technology and SP Trä, Skellefteå
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Files & Access

Bifogad uppsats fil(er) / Files attached: bth2012khorasan.pdf (2790 kB, öppnas i nytt fönster)