Experimental investigation of the elastoplastic response of aluminum silicate spray dried powder during cold compaction

被引：8

作者：

Bosi, F. ^{[1
,2
]}

Piccolroaz, A. ^{[1
]}

Gei, M. ^{[1
,2
]}

Dal Corso, E. ^{[1
]}

Cocquio, A. ^{[2
]}

Bigoni, D. ^{[1
]}

机构：

[1] Univ Trento, Dept Civil Environm & Mech Engn, I-38123 Trento, Trento, Italy

[2] SACMI Imola SC, R&D Dept, I-40026 Imola, BO, Italy

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2014年 / 34卷 / 11期

关键词：

Ceramic powder; Triaxial tests; Yield criteria; Cold forming; Constitutive modelling; DENSIFICATION BEHAVIOR; MECHANICAL-PROPERTIES; CERAMIC POWDER; FORMULATION; FRAMEWORK; BODIES; STRAIN;

D O I：

10.1016/j.jeurceramsoc.2013.11.037

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Mechanical experiments have been designed and performed to investigate the elasto-plastic behaviour of green bodies formed from an aluminum silicate spray dried powder used for tiles production. Experiments have been executed on samples obtained from bold compaction into a cylindrical mould and include: uniaxial strain, equi-biaxial flexure and high-pressure triaxial compression/extension tests. Two types of powders have been used to realize the green body samples, differing in the values of water content, which have been taken equal to those usually employed in the industrial forming of traditional ceramics. Yielding of the green body during compaction has been characterized in terms of yield surface shape, failure envelope, and evolution of cohesion and void ratio with the forming pressure, confirming the validity of previously proposed constitutive models for dense materials obtained through cold compaction of granulates. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：2633 / 2642

页数：10

共 18 条

[1]

[Anonymous], J EUR CERAM SOC

[2]

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