Banca de DEFESA: ERIADNA GOMES DA SILVA MARTINS

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : ERIADNA GOMES DA SILVA MARTINS
DATE: 24/08/2023
TIME: 14:00
LOCAL: meet.google.com/egi-ocoh-abj
TITLE:

DEGRADATION OF  FULL-BODY HARNESSES AGAINST FALLS AFTER USE BY ACTIVITY FIELDS.

KEY WORDS:

Personal Protective Equipment, Full Body Harnesses Degradation, Textile Materials Tests, Static Resistance Test, Dynamic Resistance Tests.

PAGES: 59
BIG AREA: Engenharias
AREA: Engenharia Química
SUBÁREA: Tecnologia Química
SPECIALTY: Têxteis
SUMMARY:

Full-body harnesses are used as protective equipment in order to minimize the consequences of high falls and require good mechanical properties to provide the necessary protection to the user. There are few studies about the characterization of used full-body harnesses in order to identify and quantify the loss of degradation after its usage time. Previous studies showed those protective equipments lose their protective properties during service life, caused by several destructive factors as well as UV, dust, chemicals, temperature changes and humidity, as direct contact with sharp objects and rough surfaces. The objective of this work is to present degradations found in full-body harnesses after use, relating these defects to the types of activity to which they were exposed. The methodology used is based on the use of full body harnesses samples against falls used by workers in several companies, performing a visual inspection, characterization of textile materials, static and dynamic tests on said samples. The results confirm several types of degradation found in previous research and demonstrate that most of the defects found are related to corrosion of metallic elements (90%), dirt (50%), and wear on the tapes (20%). In those samples collected in industry, a greater diversity of defects and dirt were found, while in civil construction only dirts from cement was found. In the energy and telecommunications sectors, defects were found in dorsal support elements and in the legs, in addition to wear on the tapes in 80% of the samples, which may be related to the daily frequency of use of Personal Protective Equipments to climb stairs and poles. Finally, all used full body harnesses against falls studied were approved in dynamic tests, but there was a loss of resistance of 3.46%, proven through static resistance tests.

COMMITTEE MEMBERS:
Presidente - 2239386 - JOSE IVAN DE MEDEIROS
Interna - 2614285 - KESIA KARINA DE OLIVEIRA SOUTO SILVA
Externo ao Programa - 2085750 - FAGNER ALEXANDRE NUNES DE FRANCA - UFRNExterno à Instituição - FERNANDA STEFFENS - UFSC