[PDF] The Development Of Materials For Structures And Radiation Shielding In Aerospace eBook

Author : National Aeronautics and Space Adm Nasa
Publisher : Independently Published
Page : 30 pages
File Size : 21,40 MB
Release : 2018-09-25
Category : Science
ISBN : 9781724039828

GET BOOK

Polymeric materials on space vehicles and high-altitude aircraft win be exposed to highly penetrating radiations. These radiations come from solar flares and galactic cosmic rays (GCR). Radiation from solar flares consists primarily of protons with energies less than 1 GeV. On the other hand, GCR consist of nuclei with energies as high as 10(exp 10) GeV. Over 90% of the nuclei in GCR are protons and alpha particles, however there is a small but significant component of particles with atomic numbers greater than ten. Particles with high atomic number (Z) and high energy interact with very high specific ionization and thus represent a serious hazard for humans and electronic equipment on a spacecraft or on high-altitude commercial aircraft (most importantly for crew members who would have long exposures). Neutrons generated by reactions with the high energy particles also represent a hazard both for humans and electronic equipment. Kiefer, Richard L. and Orwoll, Robert A. Langley Research Center

Author : John William Wilson
Publisher :
Page : 496 pages
File Size : 36,28 MB
Release : 1997
Category : Extraterrestrial radiation
ISBN :

GET BOOK

The purpose of the workshop was to define requirements for the development and evaluation of high performance shield materials and designs and to develop ideas regarding approaches to radiation shielding.

Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
Page : 32 pages
File Size : 18,11 MB
Release : 2018-06-11
Category :
ISBN : 9781721018444

GET BOOK

This part of Exploration Atmospheres Working Group analyses focuses on the potential use of nonmetallic composites as the interior walls and structural elements exposed to the atmosphere of the spacecraft or habitat. The primary drive to consider nonmetallic, polymer-based composites as an alternative to aluminum structure is due to their superior radiation shielding properties. But as is shown in this analysis, these composites can also be made to combine superior mechanical properties with superior shielding properties. In addition, these composites can be made safe; i.e., with regard to flammability and toxicity, as well as "smart"; i.e., embedded with sensors for the continuous monitoring of material health and conditions. The analysis main conclusions are that (1) smart polymer-based composites are an enabling technology for safe and reliable exploration missions, and (2) an adaptive, synergetic systems approach is required to meet the missions requirements from structure, properties, and processes to crew health and protection for exploration missions.Barghouty, A. F. and Thibeault, S. A.Langley Research Center; Marshall Space Flight CenterRADIATION SHIELDING; EXTRATERRESTRIAL RADIATION; FLAMMABILITY; TOXICITY; SPACECREWS; AEROSPACE MEDICINE; HABITATS; PROTECTION

Author : Sarika Verma
Publisher : Elsevier
Page : 370 pages
File Size : 15,85 MB
Release : 2024-01-12
Category : Technology & Engineering
ISBN : 0323953867

GET BOOK

Advanced Radiation Shielding Materials: Radiation and Radiological Protection provides an in-depth evaluation of the different types of radiation (x-rays, gamma rays, neutron, UV and EMI) and the development of radiation shielding materials that can be exploited for designing and use in multiple applications. The book also presents a review of the process parameters necessary to develop radiation shielding materials which will assist in the ongoing research to optimize and enhance processes such as the use of 3D orienting and CVD to create efficient radiation shielding material. This book will play a pivotal role and opens new avenues for global research and development by providing an understanding of the mechanisms of radiation shielding and bringing these concepts to application using different materials. Provides comprehensive information on how to develop and characterize advanced radiation shielding material using current state-of-the-art technologies Analyzes and comparison of experimental data on the physical parameters of the developed advanced radiation shielding material Presents knowledge on the generation and dissemination in radiation and radiation shielding materials in various applications of advanced radiation shielding material in a broad array of fields including space, healthcare, nuclear power plants, food technology, etc. Discusses environmental, ethical and medical guidelines that are related to the use of advanced radiation shielding materials

Author : Jacob Kleiman
Publisher : Springer Science & Business Media
Page : 606 pages
File Size : 12,51 MB
Release : 2012-09-22
Category : Technology & Engineering
ISBN : 3642302297

GET BOOK

The goals of the 10th International Space Conference on “Protection of Materials and Structures from Space Environment” ICPMSE-10J, since its inception in 1992, have been to facilitate exchanges between members of the various engineering and science disciplines involved in the development of space materials, including aspects of LEO, GEO and Deep Space environments, ground-based qualification, and in-flight experiments and lessons learned from operational vehicles that are closely interrelated to disciplines of the atmospheric sciences, solar-terrestrial interactions and space life sciences. The knowledge of environmental conditions on and around the Moon, Mars, Venus and the low Earth orbit as well as other possible candidates for landing such as asteroids have become an important issue, and protecting both hardware and human life from the effects of space environments has taken on a new meaning in light of the increased interest in space travel and colonization of other planets. And while many material experiments have been carried out on the ground and in open space in the last 50 years (LDEF, MEEP, SARE, MISSE, AOP, DSPSE, ESEM, EURECA, HST, MDIM, MIS, MPID, MPAC and SEED), many questions regarding the environmental impact of space on materials remain either poorly understood or unanswered. The coming generations of scientists will have to continue this work and tackle new challenges, continuing to build the level of confidence humans will need to continue the colonization of space. It is hoped that the proceedings of the ICPMSE-10J presented in this book will constitute a small contribution to doing so.

Author : Jacob I. Kleiman
Publisher : AIP Conference Proceedings / M
Page : 730 pages
File Size : 21,15 MB
Release : 2009-01-15
Category : Science
ISBN :

GET BOOK

The conference proceedings are discussing the latest developments in the area of the effects of the space environment on materials and structures and the ways to prevent and/or reduce them. The effects of various space environment factors like atomic oxygen, vacuum ultraviolet radiation, charging, micrometeoroids, meteoroid showers, etc. on materials and structures in various space conditions are discussed. In addition the ways to prevent these effects or reduce them through protection by coatings or modification of affected surfaces are considered in the book. The discussions on development of predictive models of material erosion that will allow the materials engineers and designers of future spacecraft to evaluate materials' behavior is continued from the past meetings.