Elastični povrat savijenih limova postupkom savijanja u tri točke

undergraduate thesis

• Title (english): Elastic springback of bended sheets in a three-point bending process
• Author: Jelena Soldo
• Mentor: Zdenka Keran (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2022-03-02, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering; Production Mechanical Engineering

Abstract

U ovom radu opisana je tehnologija oblikovanja metala deformiranjem te neki od utjecajnih
parametra pri oblikovanju. Jedan od najčešće korištenih postupaka pri obradi limova je
postupak savijanja. Značajniji problem prilikom procesa savijanja lima predstavlja elastični
povrat. Također su opisani neki od faktora koji djeluju na pojavu i iznos elastičnog povrata. U
eksperimentalnom dijelu rada proveden je postupak savijanja u tri točke za tri različita
materijala. Tijekom eksperimentalne analize očitane su sile i elastični povrati, te je nakon toga
provedena proračunska analiza. Usporedbom eksperimentalne i proračunske analize izvedeni
su zaključci koji materijal podnosi najveću silu i ima najveći elastični povrat. Numeričkom
analizom u programskom paketu MSC Marc Mentant SE pomoću metode konačnih
elemenata, prikazana je raspodjela naprezanja i položaj neutralne linije.

Abstract (english)

In this thesis the deformation forming technology is described and some of the influential
parameters in forming. One of the most commonly used processes in sheet metal processing is
the bending process. A significant problem during the sheet metal bending process is the
elastic springback. Some of the factors influencing the occurrence and amount of elastic
springback are also described. In the experimental part of the thesis, a three - point bending
procedure was performed for three different materials. During the experimental analysis,
forces and elastic recovers were read, and a budget analysis was performed thereafter. By
comparing experimental and computational analysis, conclusions were drawn as to which
material withstands the greatest force and has the greatest elastic springback. Numerical
analysis in the software package MSC Marc Mentant SE using the finite element method,
shows the stress distribution and the position of the neutral line.

• Keywords: tehnologija oblikovanja metala deformiranjem; postupak savijanja; elastični povrat
• Keywords (english): deformation forming technology; bending process; elastic springback
• Language: croatian
• URN:NBN: urn:nbn:hr:235:440490
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2022-02-24 14:56:14