@article{flanagan_zikry_wall_el-shiekh_1999, title={An experimental investigation of high velocity impact and penetration failure modes in textile composites}, volume={33}, ISSN={["0021-9983"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-0032668475&partnerID=MN8TOARS}, DOI={10.1177/002199839903301202}, abstractNote={ The dynamic failure evolution of textile composites, which were subjected to impact velocities up to 1100 m/s, was investigated. Specialized machines were used to fabricate composites from combinations of Spectra®, Kevlara®, and Twaron® fibers and two- and three-dimensionally woven, braided, and needle-punched nonwoven fabrics. This control of fabrication and processing enabled us to characterize response as a function of areal density, fabric finish, and consolidation techniques. Failure was categorized in terms of material layers, debris mass, matrix cracking, fiber failure, and shear-plugging. Results indicate that shear-plugging occurs at velocities corresponding to decreases in debris mass. }, number={12}, journal={JOURNAL OF COMPOSITE MATERIALS}, author={Flanagan, MP and Zikry, MA and Wall, JW and El-Shiekh, A}, year={1999}, pages={1080–1103} }
 @article{seyam_meng_el-shiekh_1999, title={Carding dynamics - Part II: Development of a device for on-line measurement of two-dimensional fiber loading on card elements}, volume={69}, DOI={10.1177/004051759906900301}, abstractNote={ The first part of this series shows that empirical and theoretical relationships devel oped to relate cardability to fiber movement and distribution have no practical value without a technique to measure fiber loading on card elements. This paper closely examines and compares off- and on-line techniques and devices implemented by pre vious researchers to measure fiber loads on card elements. Additionally, this part pre sents research efforts to develop a new optimum device with flexible features to mea sure two-dimensional fiber loading on card elements. }, number={3}, journal={Textile Research Journal}, author={Seyam, Abdel-Fattah and Meng, J. and El-Shiekh, A.}, year={1999}, pages={155–161} }
 @article{seyam_elshiekh_1995, title={MECHANICS OF WOVEN FABRICS .5. IMPACT OF WEAVABILITY LIMIT PARAMETERS ON PROPERTIES OF FABRICS FROM YARNS WITH THICKNESS VARIATION}, volume={65}, ISSN={["0040-5175"]}, DOI={10.1177/004051759506500103}, abstractNote={ Properties of fabrics woven from regular warp yarns and filling yarns with periodic mass variation are studied in terms of weavability limit parameters. Four variables are varied systematically and their relationships with fabric properties investigated. These are pick density, probability of overlap p (the ratio of double the thick place length of filling yam to the wave length), yarn balance β' (the ratio of the thick place diameter of the filling yam to the warp yarn diameter), and weave design. Statistical analyses (regression, general linear model, TUKEY, and REGWQ multiple comparison, and analysis of variance) demonstrate that the four weavability limit parameters sig nificantly influence the fabric properties investigated. The study shows that fancy fabrics from yams with mass variation can be constructed to meet predetermined properties. }, number={1}, journal={TEXTILE RESEARCH JOURNAL}, author={SEYAM, A and ELSHIEKH, A}, year={1995}, month={Jan}, pages={14–25} }
 @article{seyam_elshiekh_1994, title={MECHANICS OF WOVEN FABRICS .4. CRITICAL-REVIEW OF FABRIC DEGREE OF TIGHTNESS AND ITS APPLICATIONS}, volume={64}, ISSN={["1746-7748"]}, DOI={10.1177/004051759406401105}, abstractNote={ Extensive coverage of previous work in the area of developing a dimensionless number or index to express a woven fabric's degree of tightness or firmness is critically reviewed. The review also includes applications of fabric tightness to designs of similar cloth, to weaving resistance, and to their relationships with fabric properties. A new tightness factor, based on a combination of Ashenhurst's ends-plus-intersections theory and Love's racetrack geometry, is suggested. The advantages and limitation of the new tightness are discussed. }, number={11}, journal={TEXTILE RESEARCH JOURNAL}, author={SEYAM, A and ELSHIEKH, A}, year={1994}, month={Nov}, pages={653–662} }
 @misc{doyne_benson_el-shiekh_1994, title={Yarn carrier with clutch}, volume={5285712}, publisher={Washington, DC: U.S. Patent and Trademark Office}, author={Doyne, R. A. and Benson, R. H. and El-Shiekh, A.}, year={1994} }
 @article{seyam_elshiekh_1993, title={MECHANICS OF WOVEN FABRICS .3. CRITICAL-REVIEW OF WEAVABILITY LIMIT STUDIES}, volume={63}, ISSN={["1746-7748"]}, DOI={10.1177/004051759306300701}, abstractNote={ Extensive coverage of previous work in the area of weavability limit theories, their experimental validation, and their practical importance is reviewed. The review also includes previous work on maximum construction relationships derived empirically, as well as a comparison of different theories and empirical studies. }, number={7}, journal={TEXTILE RESEARCH JOURNAL}, author={SEYAM, A and ELSHIEKH, A}, year={1993}, month={Jul}, pages={371–378} }
 @misc{el-shiekh_li_hammad_1992, title={Yarn carrier apparatus for braiding machines and the like}, volume={5156079}, publisher={Washington, DC: U.S. Patent and Trademark Office}, author={El-Shiekh, A. and Li, W. and Hammad, M.}, year={1992} }
 @article{seyam_elshiekh_1990, title={MECHANICS OF WOVEN FABRICS .1. THEORETICAL INVESTIGATION OF WEAVABILITY LIMIT OF YARNS WITH THICKNESS VARIATION}, volume={60}, ISSN={["0040-5175"]}, DOI={10.1177/004051759006000704}, abstractNote={ Theoretical maximum weavability relationships of fabrics woven from regular warp ends and variable thickness filling yarns are derived by developing a local geometry where the thick filling place is interlaced with warp ends and where warp yarn is interlaced with thick and thin filling yarns. Geometric relationships are derived from the local geometry, and hence a local weavability limit relationship is deduced. The average warp and filling spacings are calculated by developing an imaginary proba bilistic model of a time scale and relating the geometric parameters at different locations. The final expressions for the weavability limit, which represent the fabric sheet as a whole, relate the average maximum warp and filling cover factors to the ratio of average filling yarn to warp yarn diameters; the ratio of thick place of filling to warp yarn diameters; and the ratio of thick place length of filling to the wave length, warp and average filling densities, thick and thin places of filling yarn densities, number of filling yarns in the pattern repeat, and weave design. }, number={7}, journal={TEXTILE RESEARCH JOURNAL}, author={SEYAM, A and ELSHIEKH, A}, year={1990}, month={Jul}, pages={389–404} }
 @article{seyam_elshiekh_1990, title={MECHANICS OF WOVEN FABRICS .2. EXPERIMENTAL-STUDY OF WEAVABILITY LIMIT OF YARNS WITH THICKNESS VARIATION}, volume={60}, ISSN={["0040-5175"]}, DOI={10.1177/004051759006000805}, abstractNote={ A wide range of tightly woven fabrics made from regular thickness warp ends and filling yams with pulse train irregularities was produced to test the validity of the theoretical weavability limit relationships developed in Part I of this study. The in vestigation includes periodic and random thickness variation filling yarns. The results show that the agreement between the theoretical and loom maximum fabric cover factors is fairly good up to eight-harness weaves. }, number={8}, journal={TEXTILE RESEARCH JOURNAL}, author={SEYAM, A and ELSHIEKH, A}, year={1990}, month={Aug}, pages={457–463} }