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(c) Ferroday Ltd 2015, Vico Equense
Materials and the
properties products
Dr. Norman Swindells, CEng, FIMMM
Ferroday Ltd, UK
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(c) Ferroday Ltd 2015, Vico Equense
Structure of ISO 10303
Risk
Part 58
Representation
Part 43
Product
Structure
Part 44
Geometry
topology
Part 42
Product
Part 41
Integrated Generic
Resources for any product
Application protocols –
Process
Part 49
Materials
Part 45
Specialisation of generic resources for an engineering need
Engineering
software
data file
Part 21, 28
Maths
Part 50
State
Part 56
Application level
Engineering
software
Instance
level
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Engineering property representation
• A material is a product and can therefore be represented by an ISO 10303
information model for a product
• The value of an engineering property for a product has to be associated with
a data environment (metadata) that defines its validity.
• ISO 10303-45: ‘Material and other engineering properties’ (1998 and 2008)
• Generic information model for any property of any product with its data
environment
• Understanding (semantic) of an engineering property is defined by a
measurement process
• ISO 10303-235: ‘Engineering properties for product design and verification’
(2009) :
• Information model for any property of any product measured by any
process
• Describes an audit trail from a design value through the processes that
were used to derive the value
• Names of processes and their properties can be defined in a reference
dictionary conforming to ISO 13584
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Data dictionary for properties
• Principle of Part 235 is that the meaning (semantic) of an
engineering property is defined by the method used to
measure it.
• Two kinds of properties:
• Measured by comparison with a standard quantity (length,
resistance, time, etc)
• Measured by simulating a behaviour (strength, fracture toughness,
hardness, etc)
• Both need the conditions that were applicable to the value at the
measurement – data environment from ISO 13030-45
Semantics of the second type require a definition of the method of
measurement.
An application of ISO 13584 Parts library can provide these
definitions in a classification of testing methods.
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Overview of ISO 10303-235
Processes
Product details
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ISO 10303-235 Engineering properties for
product design and verification
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Product, product history
Testing processes
Resource properties
Property representation
• Static, dynamic, directional,
tabular
• Numerical, descriptive,
mathematical values
• Functions, tensors, etc
• Uncertainty, reliability
• of all values
• Substance composition
and internal structure
• Persons, organisations
• Approvals, qualifications,
certification
• Documents, files
• External references
• Effectivity
• Language
• Locations
• Requirements
• Resources
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Demonstration examples of applications
• Tensile tests at ambient and elevated temperatures
• Fatigue S-N function data
• Corrosion fatigue
• Composite coupon tests by tensile and compression
buckling
• Ultrasonic NDT inspections by phased array, pulsed echo
and time-of-flight (ToFD) methods
• Complete product data, method description and test
results in a single data file – independent from
proprietary software
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NDT inspection scenario
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Scope of application
• Product location, identification and assembly
• Product composition, structure and properties (e.g.
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fracture toughness) for critical engineering assessment
NDT instrument identification and settings
NDT probe description and beam settings
NDT process: type of inspection, datum, start and finish of
scan, direction, etc. Reference to standards and written
procedures
NDT results: location, shape and type of defect
NDT verification process: of process, of product integrity
Qualifications of organizations, personnel and approvals
Customer and contract identifications
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Conclusions
• ISO 10303-235 provides a comprehensive collection of
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information structures for the representation of the
properties of products
It is scalable for small collections of data or extendable to
complex methods of measurement.
Selections from a complete data set could be used for
discrete parts of the supply chain but related by
conformance to the same specification.
Having data that is independent from proprietary software
will support the re-use or remanufacture of components
for sustainable development.
Links with the BIM would improve the data management
for components of a large construction.