Australian hardwood species have potential in musical instrumentation replacing hardwood species such as Dalbergia latifolia (Indian rosewood- IRW) which is the main species used in guitar fretboard production. In this study, a detailed characterisation was conducted using dynamic and static testing to determine samples’ mechanical strength. Dynamic testing was conducted using non-destructive acoustic testing to record the sound velocity travelling through boards in the longitudinal grain direction. The elastic modulus for the tested samples was also calculated using the dynamic results. Four point bending tests were conducted in accordance with AS/NZS 4063.1 to determine the bending strength (MOR) and stiffness (MOE) to be compared with the dynamic results. The Janka hardness for each of the species was determined for reference in accordance with the Australian testing method developed by J.J. Mack. Species tested had sound radiation characteristics values close to Indian rosewood (IRW) samples tested. The internal friction of Australian samples tested and IRW were low providing indication for future applications of these species to musical instrument manufacture. Sound quality factor and speed of sound determined for tested species were similar to IRW. Mechanical strength and performance of the tested species displayed similar values to the IRW properties; indicating the potential of these species for long-term use in fretboard applications. The MOE and MOR values for Australian hardwood species were dependent on the density; the Queensland walnut (QWL), Kuranda Satin ash (KSA), Hickory ash (HKA) and Red mahogany (RMG) samples had highest mechanical strength values within the range of IRW including the Janka hardness, MOR and MOE values. The work presented here identified four Australian hardwood species with potential for fretboard production. These species will be tested for sound quality and performance prior to fretboard prototyping.

澳大利亚的阔叶树种在乐器方面具有潜力，可以代替阔叶黄檀等阔叶树种（印度花梨木-IRW）是吉他指板生产中使用的主要树种。在这项研究中，使用动态和静态测试进行了详细的表征，以确定样品的机械强度。使用无损声学测试进行动态测试，以记录沿纵向晶粒方向通过木板的声速。还使用动态结果来计算测试样品的弹性模量。根据AS / NZS 4063.1进行了四点弯曲测试，以确定弯曲强度（MOR）和刚度（MOE）与动态结果进行比较。根据JJ Mack开发的澳大利亚测试方法，确定每种物种的扬卡硬度，以供参考。被测物种的声音辐射特性值接近被测印度红木（IRW）样品。测试的澳大利亚样品和IRW的内部摩擦很低，为这些种类在乐器制造中的未来应用提供了指示。为被测物种确定的音质因子和音速类似于IRW。被测物种的机械强度和性能显示出与IRW特性相似的值；表明这些物种在指板应用中长期使用的潜力。澳大利亚硬木树种的MOE和MOR值取决于密度。昆士兰核桃（QWL），库兰达缎灰（KSA），山核桃灰（HKA）和红木（RMG）样品在IRW范围内的机械强度值最高，包括Janka硬度，MOR和MOE值。此处介绍的工作确定了四种具有指板生产潜力的澳大利亚硬木树种。在指板原型制作之前，将对这些种类的声音质量和性能进行测试。