Analytical assessment of woven fabrics under vertical stabbing – The role of protective clothing. (February 2016)

• Record Type: Journal Article
• Authors: Hejazi, Sayyed Mahdi; Kadivar, Nastaran; Sajjadi, Ali
• Is Part Of: Forensic science international. Volume 259(2016)
• Page Start: 224
• Page End: 233
• Publication Date: 2016-02
• Subjects: Stab -- Knife -- Woven fabric -- Protective clothing -- Energy method; Medical jurisprudence -- Periodicals; Chemistry, Forensic -- Periodicals; Forensic Medicine -- Periodicals; Médecine légale -- Périodiques; Chimie légale -- Périodiques; Gerechtelijke geneeskunde; Gerechtelijke chemie; Gerechtelijke psychiatrie; Chemistry, Forensic; Medical jurisprudence; Electronic journals; Periodicals; Electronic journals; 614.1
• DOI: 10.1016/j.forsciint.2015.12.036
• Languages: English
• ISSNs: 0379-0738

Abstract

Highlights: Woven metal coated textiles were fabricated as stab resistant protective clothing. The performance of textiles was mechanically modeled under vertical stabbing. The model revealed the importance of initial stab velocity and fabric properties. Abstract: Knives are being used more commonly in street fights and muggings. Therefore, this work presents an analytical model for woven fabrics under vertical stabbing loads. The model is based on energy method and the fabric is assumed to be unidirectional comprised of N layers. Thus, the ultimate stab resistance of fabric was determined based on structural parameters of fabric and geometrical characteristics of blade. Moreover, protective clothing is nowadays considered as a strategic branch in technical textile industry. The main idea of the present work is improving the stab resistance of woven textiles by using metal coating method. In the final, a series of vertical stabbing tests were conducted on cotton, polyester and polyamide fabrics. Consequently, it was found that the model predicts with a good accuracy the ultimate stab resistance of the sample fabrics.