In this study characterizing the polyester matrix composite material reinforced with hybrid fibers (Musa acuminata stem fiber (MASF)-Hibiscus tiliaceus bark (HTBF). The aim is to increase impact toughness and shrinkage due temperature changes. length 10 cm, arranged randomly, volume fraction ratio of MASF HTBF 5%:25%, 10%:20%, 15%:15%, 20%:10%. was treated alkali by soaking it in 5% NaOH soluti...

OBJECTIVE To document deaths attributed to bumper pads and injuries from their use that are potentially preventable. STUDY DESIGN The US Consumer Product Safety Commission maintains files on cases voluntarily reported to them of deaths and injury related to commercial products. These cases represent an unknown fraction of total occurrences. We searched this database for deaths related to crib...

A 90-year-old woman presented to the author’s hospital with vomiting. Four years previously, she had undergone percutaneous endoscopic gastrostomy due to cerebral infarction. The patient’s abdomen was distended with tenderness and bowel sounds were absent. Abdominal radiography showed noticeable small intestinal gas (Picture 1). Computed tomography revealed a tube bumper outside of the stomach ...

As part of the development of a new automotive bumper beam, a complete simulation of the entire forming process was carried out using LS-DYNA. The material for the beam was an ultra high strength steel presenting many challenges for the forming process. The sequence of forming operations was roll-forming (including forming a sweep in the initially straight roll-formed section), local annealing,...

Percutaneous endoscopic gastrostomy (PEG) is a common practice for long-term nutrition of patients who are unable to take oral food. We report of an 85-year old man with a history of recurrent larynx carcinoma and hemicolectomy many years ago due to unknown reason. Laryngectomy was indicated. Preoperatively a PEG was inserted endoscopically after an abdominal ultrasonography without abnormal fi...

The car front bumper system needs to meet the requirements of both pedestrian safety and low-speed impact which are somewhat contradicting. This study aims to design a new kind of modular self-adaptive energy absorber of the front bumper system which can balance the two performances. The X-shaped energy-absorbing structure was proposed which can enhance the energy absorption capacity during imp...

At many universities, senior undergraduate mechanical engineers work in teams on industrysponsored capstone design projects. These projects provide an excellent opportunity for students to synthesize their courses, work with the more realistic deadlines and expectations of industry, and interact with company representatives. It also give industrial partners a chance to become educational partne...

Material selection is a main purpose in design process and plays an important role in desired performance of the products for diverse engineering applications. In order to solve material selection problem, multi criteria decision making (MCDM) methods can be used as an applicable tool. Bumper beam is one of the most important components of bumper system in absorbing energy. Therefore, selecting...

This research work aimed to enhance the crashworthiness of existing automobile bumper minimize crash injuries. As per simulation results weight carbon polyamide-based is reduced in comparison with steel by 9.7 kg or 47.5%, this reduction 38% increase fuel economy has been estimated. The energy absorption capability polyamide improved from and aluminum 11.15% 16.3% respectively modification, imp...