FEST - New Procedure for Evaluation of Sensitivity Experiments

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F20%3A39916511" target="_blank" >RIV/00216275:25310/20:39916511 - isvavai.cz</a>

Výsledek na webu

<a href="https://onlinelibrary.wiley.com/doi/full/10.1002/prep.202000120" target="_blank" >https://onlinelibrary.wiley.com/doi/full/10.1002/prep.202000120</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/prep.202000120" target="_blank" >10.1002/prep.202000120</a>

Jazyk výsledku

angličtina

Název v původním jazyce

FEST - New Procedure for Evaluation of Sensitivity Experiments

Popis výsledku v původním jazyce

The sensitivity of energetic materials to initiating stimuli is one of the tests with binary response. Usually, there is not a single sharp boundary between energy levels causing initiation and not causing initiation. Instead, there is an interval of energies causing the initiation with certain probability, called the sensitivity curve. In the past, various methods were developed to determine the whole sensitivity curve, or its important points (e. g. Bruceton staircase, Robbins-Monroe, Langlie, Probit analysis, or Neyer&apos;sD-optimal test, 3pod). All these methods, despite frequently used, have their limitations. We would like to introduce the new method/algorithm, called FEST (Fast and Efficient Sensitivity Testing), for the determination of a sensitivity curve. The sensitivity curve is represented by the cumulative distribution function for a lognormal distribution. The calculation of the level for the next shot is similar to Neyer&apos;s approach in the beginning of the test procedure. Later, after the overlap is reached and therefore unique maximum likelihood estimates for mu and sigma exist, the next shot level is calculated from these parameters using two user-defined constants. These constants can be used to shift the levels of testing into the area of interest of the sensitivity curve. In this article, the algorithm is introduced, its convergence to real values is supported by simple Monte Carlo simulations, and a real life example (determination of sensitivity to electrostatic discharge for a pyrotechnic mixture) is presented.

Název v anglickém jazyce

FEST - New Procedure for Evaluation of Sensitivity Experiments

Popis výsledku anglicky

The sensitivity of energetic materials to initiating stimuli is one of the tests with binary response. Usually, there is not a single sharp boundary between energy levels causing initiation and not causing initiation. Instead, there is an interval of energies causing the initiation with certain probability, called the sensitivity curve. In the past, various methods were developed to determine the whole sensitivity curve, or its important points (e. g. Bruceton staircase, Robbins-Monroe, Langlie, Probit analysis, or Neyer&apos;sD-optimal test, 3pod). All these methods, despite frequently used, have their limitations. We would like to introduce the new method/algorithm, called FEST (Fast and Efficient Sensitivity Testing), for the determination of a sensitivity curve. The sensitivity curve is represented by the cumulative distribution function for a lognormal distribution. The calculation of the level for the next shot is similar to Neyer&apos;s approach in the beginning of the test procedure. Later, after the overlap is reached and therefore unique maximum likelihood estimates for mu and sigma exist, the next shot level is calculated from these parameters using two user-defined constants. These constants can be used to shift the levels of testing into the area of interest of the sensitivity curve. In this article, the algorithm is introduced, its convergence to real values is supported by simple Monte Carlo simulations, and a real life example (determination of sensitivity to electrostatic discharge for a pyrotechnic mixture) is presented.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10103 - Statistics and probability

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Propellants Explosives Pyrotechnics

ISSN

0721-3115

e-ISSN

—

Svazek periodika

45

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

7

Strana od-do

1813-1818

Kód UT WoS článku

000555322400001

EID výsledku v databázi Scopus

2-s2.0-85088951666